Sentaro falls in love at first sight with the beautiful and sophisticated Yurika, who's a year older than him. Noticing this, Kaoru arranges a double date with Yurika, ostensibly to help the lovestruck Sentaro, but really to get him out of the way so Kaoru can focus on wooing Ritsuko. The three of them and Ritsuko go on a picnic in a nearby mountain, but it doesn't go quite as Kaoru hopes...